Hi,
We want to know if it’s possible put a filter whitch don’t send/receive a mail if this mail have a size, for example, to 4 Mb. It's possible . This configuration we could put a user group or this configuration affect all user .
could i write a little vb app or a macro to do this or it there a filter in outlook that could do it
alistair

filter in out + vb
cmendozas
You couldn't do this on a client machine, because by the time your code executes to check the message, it's already on that machine; from what you've stated, you want to prevent this before it even reaches the client ... in which case, this must be implemented on the server.
As far as setting this policy up on Exchange, you'll have to ask that question in an Exchange Server forums